Random Firewall lockouts

I have done built 2 servers based on the perfect setup, and had them working perfectly under the home network. I then installed them in a colocation facility and now any time I use the control panel the connection gets blocked (I believe it to be related to the Firewall) - This happens more or less on either server.

When I say locked out I mean everything. 21, 22, ping etc I cant even get ssh up. It happens every time I add a domain / if I change the ip address info I think i've now got rid of all traces of the old ip info and its still doing it.